Service manual

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Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Defect of indoor unit PC board.
Modify the drain piping.
YES
NO
NO
Check if the humidifier unit is
leaking.
YES
(V2782)
Field drain
piping has a defect
such as upward
sloping.
A
humidifier unit
(optional accessory) is installed
on the indoor unit.